Jessica is going to Hawaii. She plans to learn to surf. The Surf Hut company charges an initial fee of $65 for the lesson plus $2.50 for each hour she uses the surfboard.(2 points)
The number of hours is the ______. -
. The total cost of the surf lesson and surfboard is the ____
answer choices - dependent variable,
independent variable,
function,
input function
The number of hours is the input function.
The total cost of the surf lesson and surfboard is the dependent variable.
Write a function for the total cost of the surf lesson and surfboard rental.(1 point)
Let x represent the number of hours Jessica uses the surfboard.
The function for the total cost, C(x), of the surf lesson and surfboard rental can be written as:
C(x) = 65 + 2.50x
The number of hours is the independent variable because it is the variable that Jessica can freely choose and control. She can decide how many hours she wants to use the surfboard.
The total cost of the surf lesson and surfboard is the dependent variable because it depends on the number of hours Jessica uses the surfboard. The cost increases as the number of hours increases.